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Max-Delbrück-Centrum für Molekulare Medizin (MDC) Berlin-Buch Robert-Rössle-Straße 10 13125 Berlin-Buch, Germany http://www.mdc-berlin.de
Contact Ms Barbara Bachtler +49 30 94063896
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Max-Delbrück-Centrum für Molekulare Medizin (MDC) Berlin-Buch

Wie Zellen DNA-Schäden tolerieren - MDC-Forscher identifizieren Startsignal für zelluläres Überlebensprogramm

(PresseBox) (Berlin-Buch, )
Neue Erkenntnisse darüber, wie Zellen auf DNA-Schäden reagieren, haben Krebsforscher des Max-Delbrück-Centrums für Molekulare Medizin (MDC) Berlin-Buch gewonnen. Michael Stilmann, Dr. Michael Hinz und Prof. Claus Scheidereit konnten zeigen, dass das Protein PARP-1, welches DNA-Schäden in Sekundenschnelle aufspürt, den Genschalter NFkappaB, aktiviert. NFkappaB schaltet ein Überlebensprogramm ein, das den programmierten Zelltod verhindert. Die Aktivierung von NFkappaB ist eine der möglichen Ursachen für häufig auftretende Resistenzen bei der Chemo- und Strahlentherapie von Tumoren. (Molecular Cell, online, doi 10.1016/j.molcel.2009.09.032; Preview: doi 10.1016/j.molcel.2009.10.022)*.

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